What is polyploidie?
polyploidy is a term that describes more than two sets of chromosomes. Many animals and plants naturally show polyploidy and can also occur as a spontaneous mutation. Polyploidy should not be confused with aneuploidy. In the case of aneuploidy, there are supplements of one or more chromosomes, while there is another copy of the whole set of chromosomes in polyploidy. In humans, polyploid is usually incompatible with life; The polyploid fetus often spontaneously interrupts or dies shortly after birth if it survives pregnancy.
One set of chromosomes is known as a haploid set, while the couple is known as diploid. Many organisms, including humans, are diploid and inherit a haploid set from every parent. Polyploid organisms may have potentially any number of chromosome sets; Triploid has three, tetraploid has four, and so on, while in some organisms up to 12 sets of chromosomes are documented.
plants are particularly susceptible to polyploidia, with some scientists estimate that up to 80% of flowering growIn may have this property. More sets are the result of abnormal cell division, which seems to be a problem for some organisms more than others. In particular, some organisms have evolved so that they have more than two sets of chromosomes, in this case the diploid would be abnormality.
Some interesting information about plants can be obtained by studying the number of sets of chromosomes in plants. For example, coffee plants tend to have chromosomes in multiples of 11, 22, 44 and 66 chromosomes documented in various coffee plants. It seems that this suggests that the original predecessor of these plants had a haploid set of 11 chromosomes. Other common crops such as wheat.
people can refer to polyploidy as the duplication of the whole genome and emphasize that it includes a whole copy of the genome. All copies of the genome can play against each other when it comes to expression of genes, which is one of the reasons why some plant species areSo diverse and why cultivars of the same kind can differ so much despite the fact that they are all the same species. For example, apples come in a huge range of shapes, sizes and flavors, from small, bitter fruit to large, sweet. No coincidence, apples demonstrate polyploidia.